html,body {
  width: 100%;
  height: 100%;
}

canvas {
  display: block;
  vertical-align: bottom;
}

.count-particles {
  background: #000022;
  position: absolute;
  top: 48px;
  left: 0;
  width: 80px;
  color: #13e8e9;
  font-size: 0.8em;
  text-align: left;
  text-indent: 4px;
  line-height: 14px;
  padding-bottom: 2px;
  font-family: Helvetica, Arial, sans-serif;
  font-weight: bold;
}

.js-count-particles {
  font-size: 1.1em;
}

#stats,
.count-particles {
  -webkit-user-select: none;
  margin-top: 5px;
  margin-left: 5px;
}

#stats {
  border-radius: 3px 3px 0 0;
  overflow: hidden;
}

.count-particles {
  border-radius: 0 0 3px 3px;
}

#particles-js {
  width: 100%;
  height: 100%;
  position: relative;
  background-image: url(../img/bg.jpg);
  background-position: 50% 50%;
  background-size: cover;
  background-repeat: no-repeat;
  margin-left: auto;
  margin-right: auto;
}

.sk-rotating-plane {
  display: none;
  width: 80px;
  height: 80px;
  margin: auto;
  background-color: white;
  -webkit-animation: sk-rotating-plane 1.2s infinite ease-in-out;
  animation: sk-rotating-plane 1.2s infinite ease-in-out;
  z-index: 1;
  position: absolute;
  top: 50%;
  left: 50%;
  margin-left: -40px;
  margin-top: -80px;
}
.sk-rotating-plane.active {
  display: block;
}

@keyframes sk-rotating-plane {
  0% {
    -webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg);
    transform: perspective(120px) rotateX(0deg) rotateY(0deg);
  }
  50% {
    -webkit-transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);
    transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);
  }
  100% {
    -webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
    transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);
  }
}

@keyframes login-small {
  0% {
    transform: scale(1);
    -moz-transform: scale(1); /* Firefox 4 */
    -webkit-transform: scale(1); /* Safari 和 Chrome */
    -o-transform: scale(1); /* Opera */
    -ms-transform: scale(1); /* IE 9 */
  }
  100% {
    transform: scale(0.2);
    -moz-transform: scale(0.1); /* Firefox 4 */
    -webkit-transform: scale(0.2); /* Safari 和 Chrome */
    -o-transform: scale(0.1); /* Opera */
    -ms-transform: scale(0.1); /* IE 9 */
  }
}

.login {
  z-index: 2;
  position: absolute;
  width: 500px;
  border-radius: 5px;
  height: 400px;
  background: white;
  box-shadow: 0px 0px 10px #999;
  top: 50%;
  left: 50%;
  margin-top: -250px;
  margin-left: -250px;
  transition: all 1s;
  -moz-transition: all 1s; /* Firefox 4 */
  -webkit-transition: all 1s; /* Safari 和 Chrome */
  -o-transition: all 1s; /* Opera */
}
.login-top {
  font-size: 24px;
  margin-top: 40px;
  padding-left: 40px;
  box-sizing: border-box;
  color: #333333;
  margin-bottom: 40px;
}
.login-center {
  width: 100%;
  box-sizing: border-box;
  padding: 0 40px;
  margin-bottom: 30px;
}
.login-center-img {
  width: 20px;
  height: 20px;
  float: left;
  margin-top: 10px;
}
.login-center-img > img {
  width: 100%;
}
.login-center-input {
  float: left;
  width: 220px;
  margin-left: 15px;
  height: 30px;
  position: relative;
}
.login-center-input input {
  z-index: 2;
  transition: all 0.5s;
  padding-left: 10px;
  color: #333333;
  width: 100%;
  height: 40px;
  border: 0;
  border-bottom: 1px solid #cccccc;
  border-top: 1px solid #ffffff;
  border-left: 1px solid #ffffff;
  border-right: 1px solid #ffffff;
  box-sizing: border-box;
  outline: none;
  position: relative;
}
.last-input input{
  width: 50%;
}
.login-yanzheng{
  display: inline-block;
  cursor:pointer;
  width: 92px;
  height: 40px;
}
.login-yanzheng img{
	width:92px;
	height:42px;
}
.login-center-input input:focus {
  border: 1px solid dodgerblue;
}
.login-center-input-text {
  background: white;
  padding: 0 5px;
  position: absolute;
  z-index: 0;
  opacity: 0;
  height: 20px;
  top: 50%;
  margin-top: -10px;
  font-size: 14px;
  left: 5px;
  color: dodgerblue;
  line-height: 20px;
  transition: all 0.5s;
  -moz-transition: all 0.5s; /* Firefox 4 */
  -webkit-transition: all 0.5s; /* Safari 和 Chrome */
  -o-transition: all 0.5s; /* Opera */
}
.login-center-input input:focus ~ .login-center-input-text {
  top: 0;
  z-index: 3;
  opacity: 1;
  margin-top: -15px;
}
.login.active {
  -webkit-animation: login-small 0.8s;
  animation: login-small 0.8s;
  animation-fill-mode: forwards;
  -webkit-animation-fill-mode: forwards;
}
.login-button {
  cursor: pointer;
  width: 260px;
  text-align: center;
  height: 50px;
  line-height: 50px;
  background-color: dodgerblue;
  border-radius: 5px;
  margin: 0 auto;
  margin-top: 50px;
  color: white;
  font-size: 20px;
  letter-spacing: 10px;
}
@media screen and (max-width:500px) {
  .login{
    width: 100%;
    left: 0;
    margin-left: 0;
  }
  .login-center-input{
    width: 200px;
  }
  .last-input{
    width: 150px;
  }
}
